She lived with Paul Widera, and went by the last name Widera, but it is unknown whether they ever legally married.
She appears in the 1910 census twice, living in one house as Barny Czolkowski's wife, and in a another house as Paul Widera's wife. In the 1920 Census (after Barney Czolkowski's death), her children from the marriage with Barney Czolkowski are living together with Paul Widera and his children. It is not clear what is going on with the 1910 census.
Sources
Death certificate from Cook County
1920 Census, District 1670, Ward 27, District 1670, Sheet 13B
1910 Census, Sheet 16B, District 778, Ward 17, Cook, Illinois
1910 Census, Sheet 5A, District 1179, Ward 27, Cook, Illinois
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